Controller - Basic Timer Based - Gardner Denver DGH Series Instruction Manual

6. CONTROLLER – BASIC TIMER BASED
This section provides connection, adjustment and operational
information for the Basic Timer Based – Fixed Cycle Controller. Similar
information for the Standard Controller and Energy Savings Controller
featuring the APSS, Automatic Purge Saving System, can be found in
Sections 7 and 8 respectively.
6.1 Reference Figures – Basic Timer Based Controller
• Figure 6-1, Front Panel Overlay – Basic Timer Based Controller
• Figure 6-2, Point-to-Point Diagram – Basic Timer Based
Controller
Program Step
Left tower status drying
Right tower status regen
Left purge solenoid off
Right purge solenoid off
Left purge valve closed
Right purge valve closed
1 2 3
drying drying
regen regen
off off
off on
closed closed
closed open
Cycle Sequence Steps – Basic Timer Based Controller
Dryer MOP
ISO Class
Dew Point
Cycle Time (minutes)
Time
t0
t1
t2
t3
t4
t5
t6
t7
t8
Purge time (min:sec)
Repress. time (min:sec)
Fixed Cycle Timing – Basic Timer Based Controller
6.2 Connections – Basic Timer Based Controller
See Figure 6-2, Point-to-Point Diagram for the location and function of
the various cable and cord connectors that are provided on the bottom
of the Basic Timer Based Controller enclosure.
6.2.1 Connections - Input Power
6.2.1.1 VAC Input Power Connections
Single-phase, alternating current (AC) input power connection of 100-
240 VAC / 1 ph / 50-60 Hz. can be made at terminals mounted within
the control enclosure. See reference figures for proper polarity.
4 5
drying regen
regen drying
off off
off off
closed closed
closed closed
Table 6-1
60 - 150 psig (4.1 - 10.3 barg)
2
-40°C
-40°F
10
Time from start of cycle
(minutes:seconds)
00:00
00:02
00:06
04:12
05:00
05:02
05:06
09:12
10:00
Reference Data
04:12
00:48
Table 6-2
— 18 —
6 7
regen regen
drying drying
off on
off off
closed open
closed closed
8
regen
drying
off
off
closed
closed